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fleshy, hard, yellowish, and smooth, forming a tube in which live 
usually several of the orange larvee. When distinct, the galls are 
usually about 7X7 inch. They are common around Old Aber- 
deen. 
Salix Lapponum L. Beangalls like A. on S. phylicifolia, but smaller 
3-3 inch), somewhat pubescent, and green or red. The maker is 
a saw-fly. They are common in Glen Callater in July and 
August. 
Salix arbuscula, L. Beangalls like those just described, but projecting 
more from the leaf, and smooth. They occurred on one bush on 
Little Craigendal. 
Salix herbacea L. Peagalls like those (B) on S. phylicifolia, but smaller 
(3-¢ inch in diameter), and bright red in colour. Maker, Nematus 
herbacee, Cameron. They occur singly on the leaves, but often a 
good many ona plant; they are not uncommon in Glen Callater 
; in 
Salix purpurea L. (Purple Osier) A., galls of Nematus Vollenhoveni 
Cameron. They are peagalls about + inch in diameter attached to 
the midrib below, but also showing slightly through the leaf; they 
are naked, smooth, and green or yellowish green, often redcheeked, 
or covered with small warty yellow tubercles; the walls are rather 
thin; each is tenanted by one larva; often from two to six galls 
occur on a leaf. They are common at Rubislaw, nearAberdeen, 
and at Strachan, near Banchory, in July. i 
B. Galls of Cecidomyia Salicis Schrk. They are swellings of the 
younger twigs, and sometimes reach a length of 4 to 2 inches, and 
a breadth four or five times greater than normal; they are 
rounded or oval in form, green, naked, and smooth or wrinkled. 
On section the wood tissue of the twig seems unchanged, the pith 
alone being enlarged and hollowed out into oval cells, separated 
by narrow partitions. These galls are common at Strachan, near 
Banchory. From galls gathered in the beginning of May I reared 
the insects in the end of May. 
NAT. ORD. CUPULIFER2. 
Quercus Robur L (Oak).—The galls on this tree are so numerous as to 
require sub-division into groups for convenience of reference. I 
therefore divide them into— 1, galls of Cynipide (gall-flies), and 
2, galls of Cecidomyide (gall-midges). 
Div. 1, Galls of Cynipidw, Sub. div., Budgalls on trunk. 
Galls of Trigonaspis megaptera Panz. They are attached to the 
trunk anywhere from a little under the ground to about six feet 
up the trunk, either singly or in groups (but not grown together), 
and can usually be made out to be placed on a rudimentary branch, 
though often apparently sessile. They are usually sunk among 
the moss, with which their bright red colour forms so vivid a con- 
trast that they are readily detected. They are spherical, usually 
with a short, wart-like tip, j's-} inch diameter (irregular from 
pressure, when in groups) smooth and velvety, naked; walls thick 
and juicy, shrivel up after escape of insect, cavity small. Appear 
in May, insects emerge in June. Common in Corbie Den, at 
Culter, and in Parkhill woods. 
Sub-div., Budgalls on the Branches. 
B, Galls of Cynips Kollari Hart. These galls, well-known in England 
by the name of ‘ Devonshire Galls,’ are believed to have been in- 
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